Im NOT UNDERSTANDING THIS Dev!!!!

Why is it that before you purchase gold for upgrades there is a set amount for instant upgrades, but what Ive noticed is the moment I purchased the gold needed for the instant upgrades ((SUDDENLY)) the amount that was originally needed has increased for no apparent reason. Why is that please help me understand this????

PS. The way you have your gold bundles priced are incorrect. You didnt give anything extra quite honestly. For example; 14000 gold is $99.99 thats the set amount universally. But youre advertising gamers will get 40% extra thus making it 14000 @ $99.99 which is false advertising..

M20x about Empires & Allies